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MangoHud vs CapFrameX: catalog facts
MangoHud	CapFrameX
Free Free and open source.	Free Free and open source.
Linux	Windows
Works with both Vulkan and OpenGL games Shows frame timing as well as average FPS	Focuses on frametime and stutter, which average FPS numbers hide Free and open source
Linux only Configuration is done through files and environment variables rather than a full settings app	Windows only Sharing results relies on CapFrameX's own cloud service
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MIT
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.